Price Feed Failure

Definition ∞ Price feed failure occurs when the data stream providing real-time asset prices to a blockchain protocol becomes inaccurate, unreliable, or entirely stops functioning. This malfunction can result from oracle network issues, data manipulation, or connectivity problems. In decentralized finance, an erroneous price feed can lead to incorrect liquidations, unfair loan settlements, or significant losses for users. It compromises the integrity of automated financial operations.
Context ∞ The susceptibility of DeFi protocols to price feed failures is a recurring theme in news about smart contract security and oracle reliability. Such failures have historically caused substantial financial damage in various lending and derivatives protocols. The industry is actively working on strengthening oracle networks through decentralization, aggregation of multiple data sources, and robust validation mechanisms to prevent future incidents.

A close-up view reveals a structured, grey container, possibly a component of a larger system, partially filled with a vibrant, deep blue liquid. Numerous white bubbles actively form and dissipate across the liquid's surface and around a clear, submerged circular module. The dynamic effervescence suggests an ongoing process or agitation within this contained environment. The blue liquid metaphorically represents a liquidity pool of digital assets, with the bubbles signifying active transaction validation or gas fees within a decentralized finance DeFi protocol. The transparent module could symbolize an oracle data feed or a smart contract interface executing within the blockchain ledger.

→DeFi Security Audit

→Risk Mitigation Strategy

→Chainlink Oracle Error

Moonwell Lending Protocol Drained by Erroneous Chainlink Oracle Price Feed

A critical failure in collateral price validation allowed an attacker to leverage a faulty Chainlink oracle feed for $3.7M in uncollateralized debt .

A vibrant blue, crystalline core forms the base, resembling foundational blockchain architecture or a robust liquidity pool. This core is partially covered by a textured white layer, suggesting a consensus mechanism or data shards. Two clear, angular ice blocks, symbolizing staked digital assets or validator nodes, rest atop. A pristine white sphere, representing a governance token or an oracle, floats adjacent. Multiple metallic rings encircle the structure, illustrating Layer 2 solutions or data flow within a decentralized ledger technology ecosystem, emphasizing interoperability and advanced tokenomics.

→Decentralized Finance

→Price Feed Failure

→Smart Contract Logic

Moonwell Lending Protocol Exploited via External Oracle Price Manipulation

A temporary oracle malfunction on the Base network mispriced a collateral token, enabling a $1 million uncollateralized asset drain via systemic lending protocol logic.